[CI] Adapt Release on NPM workflow for 3.x

Author: Kocal

.github/workflows/release-on-npm.yaml

@@ -15,7 +15,7 @@ jobs:
         steps:
           - uses: actions/checkout@v4
             with:
-              ref: 2.x
+              ref: 3.x
 
           - name: Configure Git
             run: |
@@ -56,4 +56,4 @@ jobs:
           - name: Push changes
             env:
               GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-            run: git push origin 2.x
+            run: git push origin 3.x